Scilab Function
Last update : April 1993

cmndred - common denominator form

### Calling Sequence

  `[n,d]=cmndred(num,den)`

### Parameters

- `num, den`: two polynomial matrices of same dimensions

### Description

`[n,d]=cmndred(num,den)` computes a polynomial matrix `n` and a common denominator polynomial `d` such that:

`n/d=num./den`

The rational matrix defined by `num./den` is `n/d`

### See Also

`simp`, `clean`,